Читать книгу Data Lakes For Dummies - Alan R. Simon - Страница 49

Your company’s top leadership needs to help you establish a blockade against new data marts springing into existence. Your chief information officer (CIO) needs to make this policy crystal clear, in concert with their counterparts on the business side: the chief operating officer (COO), chief financial officer (CFO), and others in your company’s executive ranks.

Ideally, even your chief executive officer (CEO) should sign a declaration that another round of data mart proliferation won’t be tolerated.

Should a “no proliferation” edict be written in stone? Probably not. Some departments within your company will inevitably come up with some unique, time-is-of-the-essence analytical need that is better met through a stand-alone data mart than through the data lake.

However, the proponents of a new data mart should be required to prove their case and have their data mart project approved as an exception to the “no proliferation” rule. They need to declare the following:

 What the business imperative is for building a new stand-alone data mart (for example, to address some sort of business crisis or to take advantage of a market opportunity that must be addressed immediately)

 Why their analytical needs can’t be met using the data lake in the same time frame that it would take to build their new data mart

 Whether their planned data mart will be used only for a short period of time and be retired or if it will subsequently be incorporated into the data lake